时间:2019-03-13 作者:英语课 分类:新西兰英语


英语课

  Here are some facts about the earthquake which struck the Canterbury region 1 on Saturday.

It measured 7.1 on the Richter scale. At first we were told it was 7.4. That would mean nearly three times stronger. Each 0.2 means double the strength. On average, 18 earthquakes between 7.0 and 7.9 occur each year somewhere in the world.

The earthquake occurred on a fault line that had been hidden for 16,000 years. We knew about the Alpine 2 Fault line running along the west side of the Southern Alps but nobody knew about this one. It had been covered by gravel 3 for thousands of years, building up pressure. The fault line is about 22 km long. Photos from a plane show the ground moved where it crossed the fault line on Saturday. A row of trees in a field was in a straight line last week. Now part of the row has moved 4m.

There was a pre-shock of 5.4 a few seconds before the main earthquake on Saturday. This probably woke people and gave them time to move to safety.

We have had about a hundred after-shocks since the big earthquake. Most are between 3 and 4 on the Richter scale but last night there were two strong ones measuring 5.4. After-shocks could continue for several weeks but will become weaker and occur less frequently.

Listen to July 18th 2009 and July 22nd 2009 to hear about the Fiordland earthquake last year.

Questions

1. Is any place in the world safe from earthquakes?

2. What other places in New Zealand could have hidden fault lines?

3. What does this mean for new buildings?



n.地区,地带,区域;范围,幅度
  • The students went to study the geology of that region.学生们去研究那个地区的地质情况。
  • It is unusual to see snow in this region.这个地区难得见到雪。
adj.高山的;n.高山植物
  • Alpine flowers are abundant there.那里有很多高山地带的花。
  • Its main attractions are alpine lakes and waterfalls .它以高山湖泊和瀑布群为主要特色。
n.砂跞;砂砾层;结石
  • We bought six bags of gravel for the garden path.我们购买了六袋碎石用来铺花园的小路。
  • More gravel is needed to fill the hollow in the drive.需要更多的砾石来填平车道上的坑洼。
学英语单词
a-bafelled
agetocera discedens
Akwana
Amphidiscophora
apogee injection
aprobarbital
arborway
arm elevator
at action stations
base sth on
battlewagons
be confident in
belldars
brought you down
California anchovy
calm-water resistance
carbon dioxide cell incubator
carrying way with engine stopped
catted us
chart-topping
Chinese script structure
classical bourgeois political economy
clitoric
complete replacement value
cyclotellina discus
Dagbani
data base generation (dbgen)
dekaohm
diesel engine (lubricating) oil
dolly-mixtures
dominator
double earth-fault
El Pérez
electrocochleograms
ethnopharmacologist
fan site
giese
glanced off
gran-lit
guugus
heee
Hildebrando
holwe
incandescent capacity
intermaxillaries
Jyllands Banke
Karabil', Vozvyshennost'
kissing diseases
knot diagram
ladies' tresses
Langsa
lithotyped
liverwurst
LOPHORATES
Lytoceras
m.ed.
marginal sea basin
mile-per-gallon
minimalist approach
mobile computing
mobile monitoring station for water
monochrome test pattern
Moor-head
nocamycin
non-quantized system
non-reliable
nucleochronometer
p-type semiconducting oxide film
path-loading
pedar
perennial grasses
personal crisis management
phenology law
pilsner glass
poincare index
polywire
private-eyes
prudent management
psychosexuality
quartz-propylite
reversible motion
robustified
salt content of crude oil
Salvia bifidocalyx
saniaster
separator pressure
sourwoods
span of control
sporotrichotic
spring loaded relief valve
strong fiber
terrestrial plant ecology
theory-building
threshold unit
tipuna
trachtenberg
tract houses
vanadinizing
vindication
wah lau
wattle-and-daubs
winner's circle